Hi
In FTXP itself you do the complete assignment.
When you are in FS00, you specify if the account is a tax account (it has tax entries) or an account on which tax is applicable. If you specify a specific tax code here, you can post to the account only with that tax code.
To make it simple, say you have account A. You have option of leaving the tax category blank(if tax is not applicable) or choose '-' meaning that the account can be posted to only with input tax codes or specify a particular tax code say E1 in which case, the account can only be posted to with E1 tax code.
Regards
Sowmya
